"Just wanted to take a minute and tell you how useful PDF annotator has been for our Tech Support team. We are now able to add detailed instructions for troubleshooting directly on the hydraulic and electrical schematics we send to mechanics in the field. They can then take these instructions with them as they conduct troubleshooting on the unit. This has allowed us to cut down on the number of call backs for additional information and has provided a valuable teaching tool to the mechanics."